code: def skip_if_graph(space_format):
      if issubclass(space_format, GraphModelSpace):
          pytest.skip("GraphSpace does not support cell")
  
file_path: nni/test/ut/nas/nn/test_cell.py
imports: from typing import Type
  import pytest
  import torch
  from nni.nas.space import ExecutableModelSpace, GraphModelSpace
  from .models import CellSimple, CellDefaultArgs, CellCustomProcessor, CellLooseEnd, CellOpFactory
  from .test_choice import space_format
label_desc: Use image node_id 1 for calling a global function with example usage: skip_if_graph(space_format) without return types